Author(s)

T.G. Davies & S. Bu

Abstract

A boundary element formulation, incorporating an infinite element approach to describe the far-field behaviour outside the immediate vicinity of the loaded area and coupled with the asymptotic form of the full-space Green's function for harmonic point loading in incompressible media, is used to analyse the machine foundation problem. The infinite elements assumed in the analysis are based on Rayleigh wave attenuation away from a source located at the centroid of the loaded area, while in the finite regions, tractions and displacements are described by quadratic interpolation functions between the element nodes, and the integrations are carried out by means of triangular sub- element mappings into Gauss quadrature space to reduce the order of the singularities. A combined analytical/numerical approach is used to

Keywords